Chapter 3 Setting Up the Sensor

Changing Network Settings

server and it must be reachable for automatic update and global correlation updates to be successful. You can configure other DNS servers as backup servers. DNS queries are sent to the first server in the list. If it is unreachable, DNS queries are sent to the next configured DNS server.

Caution For automatic and global correlation updates to function, you must have either a DNS server or an HTTP proxy server configured at all times.

Caution DNS resolution is supported for accessing the global correlation update server as well as www.cisco.com for automatic updates.

The following options apply:

http-proxy {no-proxy proxy-sensor}—Configures the HTTP proxy server:

address ip_address —Specifies the IP address of the HTTP proxy server.

port port_number —Specifies the port number of the HTTP proxy server.

dns-primary-server {enabled disabled}—Enables a DNS primary server:

address ip_address —Specifies the IP address of the DNS primary server.

dns-secondary-server {enabled disabled}—Enables a DNS secondary server:

address ip_address —Specifies the IP address of the DNS secondary server.

dns-tertiary-server {enabled disabled}—Enables the DNS tertiary server:

address ip_address —Specifies the IP address of the DNS tertiary server.

Configuring DNS and Proxy Servers for Automatic Update and Global Correlation

To configure DNS and proxy servers to support automatic update and global correlation, follow these steps:

Step 1 Log in to the sensor using an account with administrator privileges.

Step 2 Enter network settings submode.

sensor# configure terminal

sensor(config)# service host

sensor(config-hos)# network-settings

Step 3 Enable a proxy or DNS server to support global correlation:

a.Enable a proxy server.

sensor(config-hos-net)# http-proxyproxy-serversensor(config-hos-net-pro)# address 10.10.10.1 sensor(config-hos-net-pro)# port 65 sensor(config-hos-net-pro)#

b.Enable a DNS server.

sensor(config-hos-net)# dns-primary-server enabled sensor(config-hos-net-ena)# address 10.10.10.1 sensor(config-hos-net-ena)#

Step 4 Verify the settings.

sensor(config-hos-net)# show settings network-settings

 

 

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Cisco Systems IPS4510K9 manual Enable a DNS server, Verify the settings

IPS4510K9 specifications

Cisco Systems has long been a leading player in network security, and its IPS (Intrusion Prevention System) series is a testament to its commitment to safeguarding digital environments. Among its notable offerings are the IPS4510K9 and IPS4520K9 models, both designed to provide advanced threat protection for mid-sized to large enterprise networks.

The Cisco IPS4510K9 and IPS4520K9 are distinguished by their cutting-edge features that help organizations defend against a myriad of cyber threats. These systems utilize a multi-layered approach to security, integrating intrusion prevention, advanced malware protection, and comprehensive visibility across the network.

One of the primary characteristics of the IPS4510K9 is its high performance. It boasts a throughput of up to 1 Gbps, making it suitable for environments that demand rapid data processing and real-time responses to threats. The IPS4520K9, on the other hand, enhances that capability with improved throughput of up to 2 Gbps, accommodating larger enterprises with heavier network traffic. These models are equipped with powerful processors that support complex signature matching and can intelligently distinguish between legitimate traffic and potential threats.

In addition to performance, both models are designed with scalability in mind. They can be easily integrated into existing Cisco infrastructures. This facilitates a seamless enhancement of security without causing significant interruptions to ongoing operations. Moreover, they offer flexible deployment options, allowing organizations to operate them inline or out of band depending on their specific needs.

The Cisco IPS4510K9 and IPS4520K9 leverage advanced detection technologies, utilizing a variety of signature types and heuristic analysis to detect known and unknown threats effectively. They are equipped with real-time alerting and reporting capabilities, giving security teams immediate visibility into potential breaches and enabling them to respond swiftly.

Furthermore, both models support a range of management options through the Cisco Security Manager, allowing for centralized administration, streamlined policy management, and enhanced monitoring capabilities. Automated updates ensure the systems remain current with the latest threat intelligence, vital for staying ahead of evolving cyber threats.

In summary, the Cisco Systems IPS4510K9 and IPS4520K9 represent powerful solutions for organizations seeking robust intrusion prevention capabilities. With their high performance, scalability, and advanced detection technologies, these systems are essential tools in the ever-changing landscape of cybersecurity, providing enterprises with the peace of mind needed to operate securely in today's digital world.